Make edge arrows bigger and more visible

[kahboom]

Please describe the feature that you want to propose

Make the arrow in the visualization bigger:

There isn't really a way to do this from the settings for React Flow, so it will probably have to be done through custom CSS.

[unsortedhashsets]

Hi @kahboom, I will do it

[kahboom]

thanks @unsortedhashsets , I have invited you to the Kaoto org as well, and this way you can assign/unassign yourself to whichever issue you'd like

[kahboom]

completed via https://github.com/KaotoIO/kaoto-ui/pull/1385